CN104567026B - Solar thermal collector and method for converting solar energy into mesothermal heat energy by utilizing same - Google Patents
Solar thermal collector and method for converting solar energy into mesothermal heat energy by utilizing same Download PDFInfo
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- CN104567026B CN104567026B CN201510061803.2A CN201510061803A CN104567026B CN 104567026 B CN104567026 B CN 104567026B CN 201510061803 A CN201510061803 A CN 201510061803A CN 104567026 B CN104567026 B CN 104567026B
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- reflecting plate
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- travelling gear
- collecting tube
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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Abstract
The invention discloses a solar thermal collector which comprises a thermal collection pipe, a framework, a reflecting plate and a reflecting plate rotation control device; the reflecting plate is positioned on the back side of the thermal collection pipe, and a focal axis of the reflecting plate is coincident with the axis of the thermal collection pipe; the reflecting plate is used for gathering the solar energy onto a thermal absorbing body of the thermal collection pipe; the reflecting plate rotation control device is used for driving the reflecting plate to rotate by taking the focal axis as a center, so that the reflecting plate can rotate along the change of sunshine. The invention further discloses a method for converting solar energy into mesothermal heat energy by utilizing the solar thermal collector, so that the self tracking of sunshine can be realized, the problems of common tank type, tower type, butterfly type, Fresnel type thermal collection modes are high in cost, and incapable of combining with a factory building and the problem that the non-tracking focusing mode is small in focusing ratio can be solved, 4-20 times of solar focusing ratio can be realized, solar energy is efficiently converted into mesthermal heat energy to obtain a stable mesothermal heat source of 100DEG C-300DEG C.
Description
Technical field
The present invention relates in a kind of focusing middle temperature solar heat collector of flat board and preparation temperature-heat-source method, especially relate to
And a kind of solar thermal collector and using its convert solar energy into middle warm can method.
Background technology
Middle temperature solar heat utilization technology is the Main Trends of The Development of following solar energy utilization technique.Its groundwork master
Will be between 100 DEG C～300 DEG C.Can be widely applied to all conglomeraties such as food, chemical industry, drying, generating, clothing, printing and dyeing, have
Widely market prospect.Solar energy utilization technique is concentrated mainly on low-grade utility (less than 80 DEG C) and high-temperature power generation should at present
With (more than 400 DEG C).Low-temperature solar energy heat utilization technology, because its operating temperature is below 80 DEG C, when operating temperature 100 DEG C with
When upper, efficiency is very low, cost performance difference and middle temperature thermal-arrest cannot be realized and apply.High temperature solar heat utilization technology.Its operating temperature master
Concentrate more than 400 DEG C, with high costs, system complex is huge.And cannot promote in industrial circle.Accordingly, it would be desirable to exploitation is a kind of
Suitable operating temperature, at 100 DEG C～300 DEG C, disclosure satisfy that the middle temperature solar heat collector of industrial working installation requirement.Can be real
The heat collector form that in existing, temperature solar heat collecting requires mainly has slot type, tower, butterfly, Fresnel and cpc structure etc..Groove
Formula, tower, butterfly, Fresnel collection heat pattern can provide more than 10 times of focusing ratio, it is possible to achieve middle temperature solar collection
Heat request, this class formation is typically necessary larger steel structure, can only be satisfied with factory's flat roof structure Factory Building and install, deadweight is also relatively
Greatly, high cost and seriously limit and promote the use of.Cpc structure focusing heat collection pattern generally provides less than 4 times of focusing ratio.Permissible
With the cooperation of existing complete glass vacuum sun thermal-collecting tube, temperature solar heat collector in formation.As patent 201220197631.3, institute
Stating middle temperature solar heat collector is then as thermal-collecting tube using u-shaped pipe solar collector pipe, adopts cpc reflecting plate to realize outside thermal-collecting tube
Salar light-gathering, improves solar energy heating temperature and collecting efficiency.Patent 201310143967.0 proposes a kind of similar structures
Medium-temperature collectorses, with patent 201220197631.3 essential difference be adopt circular reflector, reflecting plate and thermal-collecting tube
It is compounded to form heat-collecting plate core structure.For reducing system heat waste, heat collector employs necessary Insulation.
The described two heat collector of above-mentioned two patent all uses fixed reflecting plate (as cpc or circle) structure peace
Plate-type collector pattern.It is achieved that system compact and more sharp with slot type, tower, butterfly, Fresnel thermal-arrest model comparision
In with Integration of building.All there is the focusing low problem of ratio in above-mentioned two patent, or have that heat exchange efficiency is low or heat insulation effect is undesirable
The problems such as, lead to collecting system in the low problem of middle-temperature section collecting efficiency.
Content of the invention
The purpose of the present invention is directed to above-mentioned the deficiencies in the prior art and provides a kind of solar thermal collector and using it by the sun
Can be converted into middle warm can method, this solar thermal collector and using its convert solar energy into middle warm can method can
Realize the autotracking to sunlight, the present invention solves general slot type, tower, butterfly, Fresnel collection heat pattern high cost, no
The problem that method is combined with mill construction, and the non-trucking concentration pattern focusing little problem of ratio, it is possible to achieve 4～20 times of the sun
Light focuses on ratio, by the invention it is possible to by the middle warm energy that is converted into of solar energy highly effective, obtaining and stablize in 100 DEG C～300 DEG C
Temperature-heat-source.
For realizing above-mentioned technical purpose, the technical scheme that the present invention takes is: solar thermal collector, including thermal-collecting tube, its
It is characterised by: also include reflecting plate and reflecting plate rotation control mechanism；Described reflecting plate is located at the thermal-collecting tube back side and reflecting plate
Focal axis and thermal-collecting tube dead in line；Described reflecting plate is used for for solar energy passing through the absorber that reflection gathers thermal-collecting tube
On, to form heat energy；Described reflecting plate rotation control mechanism is used for driving reflecting plate to rotate centered on focal axis, so that reflection
Plate is followed the change of sunray and is rotated.
As further improved technical scheme of the present invention, the back side of each thermal-collecting tube is both provided with a piece of reflecting plate.
As further improved technical scheme of the present invention, described reflecting plate rotating control assembly includes controller, outside
Sensor, photoswitch and reflecting plate rotation control mechanism；Described photoswitch is used for determining the initial position of reflecting plate；Described
External sensor is used for by gps signal detection real-time time and local longitude and latitude；Described controller is according to real-time time, local warp
Latitude and the initial position of reflecting plate, control the rotation of reflecting plate by reflecting plate rotation control mechanism.
As further improved technical scheme of the present invention, described reflecting plate rotation control mechanism includes connecting rod, driving cog
Wheel, support, tooth bar, drive link, motor and motor rotating disk；Described connecting rod one end is fixedly connected with reflecting plate, the other end and transmission
Gear is fixedly connected；The dead in line all with thermal-collecting tube for the axis of the axis of connecting rod and travelling gear；Described travelling gear rotates
Rack-mount；Described motor rotating disk is fixedly mounted on the power transmission shaft of motor, and described drive link one end is with motor rotating disk even
Connect, the other end is connected with tooth bar；Described tooth bar is located at below travelling gear and is engaged with travelling gear；Described motor passes through electricity
Machine rotating disk driving drive link moves back and forth along the axis of drive link, makes described drive link drive tooth bar along the length of tooth bar
Direction moves back and forth, described rack drives travelling gear rotation, and travelling gear drives reflecting plate rotation by connecting rod；Institute
State photoswitch to be arranged on travelling gear, described controller detects the initial position of travelling gear by photoswitch, with true
Determine the initial position of reflecting plate；Real-time time and local longitude and latitude that described controller detects according to external sensor, obtain real
The azimuth of Shi Taiyang；Described controller sends control signal to electricity according to the azimuth of the sun and the initial position of reflecting plate
Machine, with the anglec of rotation of controlled motor.
As further improved technical scheme of the present invention, described reflecting plate rotation control mechanism includes connecting rod, driving cog
Wheel, support, tooth bar, motor, motor gear；Described connecting rod one end is fixedly connected with reflecting plate, and the other end is fixed with travelling gear
Connect；The dead in line all with thermal-collecting tube for the axis of the axis of connecting rod and travelling gear；Described travelling gear is rotatably installed in and props up
On frame；Described motor gear is fixedly mounted on the power transmission shaft of motor, and described motor gear is engaged with tooth bar；Described tooth bar is located at
Engage below travelling gear and with travelling gear；Described motor drives tooth bar along the length direction of tooth bar by motor gear
Move back and forth, described rack drives travelling gear rotation, travelling gear drives reflecting plate rotation；Described photoswitch peace
It is contained on travelling gear, described controller detects the initial position of travelling gear by photoswitch, to determine the first of reflecting plate
Beginning position；Real-time time and local longitude and latitude that described controller detects according to external sensor, obtain the orientation of the real-time sun
Angle；Described controller sends control signal to motor according to the azimuth of the sun and the initial position of reflecting plate, with controlled motor
The anglec of rotation.
As further improved technical scheme of the present invention, described reflecting plate rotation control mechanism includes connecting rod, driving cog
Wheel, support, motor, motor gear and chain；Described connecting rod one end is fixedly connected with reflecting plate, and the other end is fixed with travelling gear
Connect；The dead in line all with thermal-collecting tube for the axis of the axis of connecting rod and travelling gear；Described travelling gear is rotatably installed in and props up
On frame；Described motor gear is fixedly mounted on the power transmission shaft of motor, and described motor gear is engaged with chain；Described chain and biography
Moving gear engages；Described motor passes through motor gear and the rotation of chain drive travelling gear, and travelling gear drives reflecting plate rotation；
Described photoswitch is arranged on travelling gear, and described controller detects the initial position of travelling gear by photoswitch, with
Determine the initial position of reflecting plate；Real-time time and local longitude and latitude that described controller detects according to external sensor, obtain
The azimuth of the sun in real time；Described controller sends control signal to electricity according to the azimuth of the sun and the initial position of reflecting plate
Machine, with the anglec of rotation of controlled motor.
As further improved technical scheme of the present invention, described reflecting plate rotation control mechanism includes connecting rod, transmission turns
Disk, support, motor, motor rotating disk and conveyer belt；Described connecting rod one end is fixedly connected with reflecting plate, and the other end is solid with driving turntable
Fixed connection；The dead in line all with thermal-collecting tube for the axis of the axis of connecting rod and driving turntable；Described driving turntable is rotatably installed in
On support；Described motor rotating disk is fixedly mounted on the power transmission shaft of motor, and described motor passes through motor rotating disk and conveyer belt drives
Driving turntable rotates, and driving turntable rotarily drives reflecting plate rotation；Described photoswitch is arranged on driving turntable, described control
Device detects the initial position of driving turntable by photoswitch, to determine the initial position of reflecting plate；Described controller is according to outer
The real-time time that portion's sensor detects and local longitude and latitude, obtain the azimuth of the real-time sun；Described controller is according to the sun
The initial position of azimuth and reflecting plate sends control signal to motor, with the anglec of rotation of controlled motor.
As further improved technical scheme of the present invention, described reflecting plate be metallic reflection plate, glass reflecting board or
Nonmetallic reflective plate；The cross sectional shape of described reflecting plate is parabola, hyperbola or composite curve；The opening of described reflecting plate
Width is 40mm～400mm；The reflectance of described reflecting plate is not less than 0.75.
As further improved technical scheme of the present invention, also include framework；Described framework mainly by upper glass cover-plate, under
Backboard and frame are constituted；Upper glass cover-plate is common calcium soda-lime glass, high glass thoroughly, with glass with reflection reducing coating, woven design glass or
Safety glass；The thickness of upper glass cover-plate is 3.0～5.0mm, and light transmittance is not less than 0.75；Described frame be integral type structure or
Person's Combined frame structure；Described frame is aluminum alloy frame, carbon steel frame, rustless steel frame or nonmetallic frame；Described
Seal ring thickness is 40mm～400mm；Described frame is either internally or externally provided with heat-insulation layer；Described lower backboard is located under framework
Face；Described lower backboard is carbon steel sheet or embossing aluminium sheet；It is provided with the heat-insulation layer that thickness is 0～100mm above described lower backboard；
Described lower backboard or frame are provided with steam vent, are beneficial to the discharge of internal steam.
For realizing above-mentioned technical purpose, another kind of technical scheme that the present invention takes is: a kind of using above-mentioned solar energy
The method that heat collector converts solar energy into middle warm energy, comprises the following steps:
Reflecting plate positions: detect the initial position of travelling gear or driving turntable by photoswitch, controller according to
The initial position of travelling gear or driving turntable determines the initial position of reflector；
Reflecting plate is followed the tracks of and thermal-arrest: external sensor passes through gps signal detection to real-time time and local longitude and latitude, controller
Obtain the azimuth of the real-time sun according to real-time time and local longitude and latitude, then controller is according to the azimuth of the sun and reflecting plate
Initial position send control signal, by the anglec of rotation of reflecting plate rotation control mechanism reflecting plate.
The present invention solves general slot type, tower, butterfly, Fresnel collection heat pattern high cost it is impossible to and mill construction
In conjunction with problem, and non-trucking concentration pattern focus on the little problem of ratio, it is possible to achieve 4～20 times of solar light focusing ratio, lead to
Cross the present invention, the middle warm energy that is converted into of solar energy highly effective can be obtained the middle temperature-heat-source stablizing 100 DEG C～300 DEG C.This
Bright may insure that heat collector has the functions such as excellent printing opacity, dust-proof, rain-proof, steam-preventing, insulation and mechanical protection.
The present invention drives reflecting plate rotation it is ensured that the reflection at each thermal-collecting tube back side by reflecting plate rotation control mechanism
Plate real-time tracking sunlight, solar energy is gathered on thermal-collecting tube absorber by reflecting plate, forms heat energy.Heat-exchange working medium is by collecting
One of hot device import and export enter in heat collector header collector, flow through thermal-collecting tube, by thermal-collecting tube, lift the temperature of heat-exchange working medium,
And return in manifold, import and export a side outlet from heat collector and flow out, so that flat middle temperature solar heat collector is realized will too
Sun can be converted into the purpose of middle warm energy.
Header is located at lower portion side, is made up of collector and heat-insulation layer.Collector two ends are inlet/outlet pipe, and thermal-collecting tube passes through connection
Case collector round is connected on collector.Manifold is connected with thermal-collecting tube interior conduit can be using parallel-connection structure, cascaded structure or string
Parallel-connection structure.Manifold can be using single copper pipe, coaxial sleeve or parallel copper pipe structure, and the connection with thermal-collecting tube can be using solid
Surely be welded to connect or cutting ferrule connect etc. mode.Header insulation layer thickness is 0～100mm.Header length is 500～5000mm.
Thermal-collecting tube opening is connected with manifold.Thermal-collecting tube can adopt all-glass vacuum thermal-collecting tube, all-glass vacuum
Heat collection tube built-in u-shaped pipe, complete glass vacuum sun thermal-collecting tube built-in metal heat pipe, glass-to-metal sealing formula thermal-collecting tube, through type
Thermal-collecting tube, no cover glass tube thermal-collecting tube, cover glass tube carry antireflecting coating thermal-collecting tube etc..Thermal-collecting tube tube pitch is 40～400mm,
A diameter of 5～the 70mm of thermal-collecting tube absorber, thermal-collecting tube heat absorption body length is 800～2500mm.Thermal-collecting tube absorber matrix is permissible
It is glass material or metal material.Thermal-collecting tube heat-absorbing body coating is coating for selective absorption.Adopted thermal-collecting tube quantity is 5～50
?.
Reflecting plate is located at the thermal-collecting tube back side, and each thermal-collecting tube back side all arranges a piece of reflecting plate, independent between reflecting plate
Motion.Metallic reflection plate, glass reflecting board, Nonmetallic reflective plate can be adopted.Cross sectional shape is parabola, hyperbola, or compound
Curve.A/F is 40mm～400mm.Focal axis and thermal-collecting tube dead in line.Baffle reflection rate is not less than 0.75.
In reflecting plate rotation control mechanism, connecting rod is connected with reflecting plate and travelling gear, and travelling gear is connected with connecting rod and tooth
Bar matches.Travelling gear axis and thermal-collecting tube dead in line.Adopted travelling gear modulus be 0.25～4.0, a diameter of 10～
20mm.Institute is matched using tooth bar modulus and travelling gear.On travelling gear, photoswitch is set, to determine the initial of reflecting plate
Position.Travelling gear and tooth bar are fixed on support, and support is then fixed on collector frame housing and base plate.Drive link and tooth
Bar is connected.Drive link is connected with the motor rotating disk on motor.Motor can also be fixed on support.Motor is connected with controller
Connect, controller is connected with external sensor, rotated by external sensor controlled motor.
The present invention detects the initial position of travelling gear or driving turntable by photoswitch, initial to determine reflecting plate
Position；External sensor passes through gps signal detection to real-time time and local longitude and latitude, obtains the azimuth of the real-time sun, passes through
The anglec of rotation of controller controlled motor, drives reflecting plate rotation it is ensured that each thermal-arrest by reflecting plate rotation control mechanism
The reflecting plate real-time tracking sunlight at the pipe back side, solar energy is gathered on thermal-collecting tube absorber by reflecting plate, forms heat energy.
Heat-exchange working medium one of is imported and exported by heat collector and is entered in heat collector header collector, flows through thermal-collecting tube, by thermal-collecting tube, lifts heat exchange
The temperature of working medium, and return in manifold, import and export a side outlet from heat collector and flow out, make flat middle temperature solar heat collecting
Device is realized converting solar energy into the purpose of middle warm energy.The present invention can remove the drive link in heat collector, by motor
Motor rotating disk is replaced by motor gear, so that this motor gear is matched with tooth bar, realizes motor and passes through motor gear, tooth bar, company
The driving to reflecting plate for the bar.The mode such as V belt translation, chain drive also can be adopted, realize the driving to reflecting plate.
In a word, the present invention is capable of the autotracking to sunlight, solves general slot type, tower, butterfly, Fresnel
Formula collection heat pattern high cost is it is impossible to the problem that is combined with mill construction, and non-trucking concentration pattern focuses on the little problem of ratio, can
To realize 4～20 times of solar light focusing ratio, by the invention it is possible to by the middle warm energy that is converted into of solar energy highly effective, obtain
Stablize 100 DEG C～300 DEG C of middle temperature-heat-source.Present invention can assure that heat collector has excellent printing opacity, dust-proof, rain-proof, waterproof
The functions such as steam, insulation and mechanical protection.The present invention is integrated with the advantage of large-scale groove type heat collector, flat-plate collector, realizes
Groove type heat collector panelized, reduces system cost, improves system reliability, focuses on ratio optically focused by big, makes solar energy collection
Hot device steady operation, between 100～300 DEG C, provides stable middle temperature-heat-source, and is conducive to the combination with actual mill construction
And integration.
Figure of description
Fig. 1 is the structural representation of the present invention；Fig. 2 is that the circuit structure of reflecting plate rotating control assembly of the present invention is illustrated
Figure.
1 framework, 2 headers, 3 inlet/outlet pipes, 4 reflecting plates, 5 thermal-collecting tubes, 6 connecting rods, 7 travelling gears, 8 supports, 9 tooth bars, 10 biographies
Lever, 11 motors, 12 motor rotating disks
Specific embodiment
Embodiment 1
Referring to Fig. 1, this solar thermal collector, including thermal-collecting tube, also include reflecting plate and reflecting plate rotation control mechanism；Institute
State reflecting plate and be located at the thermal-collecting tube back side and the dead in line of the focal axis of reflecting plate and thermal-collecting tube；Described reflecting plate is used for will too
Sun can gather on the absorber of thermal-collecting tube, to form heat energy by reflection；Described reflecting plate rotation control mechanism is used for driving
Reflecting plate is rotated centered on focal axis, so that reflecting plate is followed the change of sunray and rotated.The back of the body of each thermal-collecting tube
Face is both provided with a piece of reflecting plate.Described reflecting plate rotating control assembly includes controller, external sensor, photoswitch and anti-
Penetrate plate rotation control mechanism；Described photoswitch is used for determining the initial position of reflecting plate；Described external sensor is used for passing through
Gps signal detection real-time time and local longitude and latitude；Described controller is initial according to real-time time, local longitude and latitude and reflecting plate
Position, controls the rotation of reflecting plate by reflecting plate rotation control mechanism.
Described reflecting plate is metallic reflection plate, glass reflecting board or Nonmetallic reflective plate；The section shape of described reflecting plate
Shape is parabola, hyperbola or composite curve；The A/F of described reflecting plate is 40mm～400mm；Described reflecting plate
Reflectance is not less than 0.75.Also include framework；Described framework is mainly made up of upper glass cover-plate, lower backboard and frame；Upper glass
Cover plate is common calcium soda-lime glass, high glass thoroughly, with glass with reflection reducing coating, woven design glass or safety glass；Upper glass cover-plate
Thickness is 3.0～5.0mm, and light transmittance is not less than 0.75；Described frame is integral type structure or Combined frame structure；Described
Frame is aluminum alloy frame, carbon steel frame, rustless steel frame or nonmetallic frame；Described seal ring thickness is 40mm～400mm；
Described frame is either internally or externally provided with heat-insulation layer；Described lower backboard is located at below framework；Described lower backboard be carbon steel sheet or
Person is embossed aluminium sheet；It is provided with the heat-insulation layer that thickness is 0～100mm above described lower backboard；Set on described lower backboard or frame
There is steam vent, be beneficial to the discharge of internal steam.
Embodiment 2
In the present embodiment 2, described reflecting plate rotation control mechanism include connecting rod, travelling gear, support, tooth bar, drive link,
Motor and motor rotating disk；Described connecting rod one end is fixedly connected with reflecting plate, and the other end is fixedly connected with travelling gear；The axle of connecting rod
The dead in line all with thermal-collecting tube for the axis of line and travelling gear；Described travelling gear is rotatably installed on support；Described motor
Rotating disk is fixedly mounted on the power transmission shaft of motor, and described drive link one end is connected with motor rotating disk, and the other end is connected with tooth bar；Institute
State tooth bar to be located at below travelling gear and engage with travelling gear；Described motor drives drive link along transmission by motor rotating disk
The axis of bar moves back and forth, and makes described drive link drive tooth bar to move back and forth along the length direction of tooth bar, institute
State the rotation of rack drives travelling gear, travelling gear drives reflecting plate rotation by connecting rod；Described photoswitch is arranged on transmission
On gear, described controller detects the initial position of travelling gear by photoswitch, to determine the initial position of reflecting plate；Institute
State real-time time and the local longitude and latitude that controller detects according to external sensor, obtain the azimuth of the real-time sun；Described control
Device processed sends control signal to motor according to the azimuth of the sun and the initial position of reflecting plate, with the anglec of rotation of controlled motor
Degree.Other parts are same as Example 1, no longer describe in detail.
Embodiment 3
In the present embodiment 2, described reflecting plate rotation control mechanism include connecting rod, travelling gear, support, tooth bar, electricity mechanical, electrical
Machine gear；Described connecting rod one end is fixedly connected with reflecting plate, and the other end is fixedly connected with travelling gear；The axis of connecting rod and transmission
The dead in line all with thermal-collecting tube for the axis of gear；Described travelling gear is rotatably installed on support；Described motor gear is fixed
It is arranged on the power transmission shaft of motor, described motor gear is engaged with tooth bar；Described tooth bar be located at travelling gear below and with biography
Moving gear engages；Described motor is moved back and forth along the length direction of tooth bar by motor gear driving tooth bar, described tooth
Bar drives travelling gear rotation, and travelling gear drives reflecting plate rotation；Described photoswitch is arranged on travelling gear, described control
Device processed detects the initial position of travelling gear by photoswitch, to determine the initial position of reflecting plate；Described controller according to
The real-time time that external sensor detects and local longitude and latitude, obtain the azimuth of the real-time sun；Described controller is according to the sun
Azimuth and the initial position of reflecting plate send control signal to motor, with the anglec of rotation of controlled motor.Other parts with
Embodiment 1 is identical, no longer describes in detail.
Embodiment 4
In the present embodiment 4, described reflecting plate rotation control mechanism includes connecting rod, travelling gear, support, motor, motor tooth
Wheel and chain；Described connecting rod one end is fixedly connected with reflecting plate, and the other end is fixedly connected with travelling gear；The axis of connecting rod and biography
The dead in line all with thermal-collecting tube for the axis of moving gear；Described travelling gear is rotatably installed on support；Described motor gear is solid
Dingan County is contained on the power transmission shaft of motor, and described motor gear is engaged with chain；Described chain is engaged with travelling gear；Described motor
By motor gear and the rotation of chain drive travelling gear, travelling gear drives reflecting plate rotation；Described photoswitch is arranged on
On travelling gear, described controller detects the initial position of travelling gear by photoswitch, to determine the initial bit of reflecting plate
Put；Real-time time and local longitude and latitude that described controller detects according to external sensor, obtain the azimuth of the real-time sun；Institute
State controller and control signal is sent to motor according to the azimuth of the sun and the initial position of reflecting plate, with the rotation of controlled motor
Angle.Other parts are same as Example 1, no longer describe in detail.
Embodiment 5
In the present embodiment 5, described reflecting plate rotation control mechanism includes connecting rod, driving turntable, support, motor, motor turn
Disk and conveyer belt；Described connecting rod one end is fixedly connected with reflecting plate, and the other end is fixedly connected with driving turntable；The axis of connecting rod and
The dead in line all with thermal-collecting tube for the axis of driving turntable；Described driving turntable is rotatably installed on support；Described motor rotating disk
It is fixedly mounted on the power transmission shaft of motor, described motor passes through motor rotating disk and conveyer belt drives driving turntable rotation, and transmission turns
Disc spins drive reflecting plate rotation；Described photoswitch is arranged on driving turntable, and described controller is detected by photoswitch
The initial position of driving turntable, to determine the initial position of reflecting plate；The reality that described controller detects according to external sensor
When time and local longitude and latitude, obtain the azimuth of the real-time sun；Described controller according to the azimuth of the sun and reflecting plate just
Beginning position sends control signal to motor, with the anglec of rotation of controlled motor.
Embodiment 6
Referring to Fig. 1, can be real using described solar thermal collector arbitrary in embodiment 1,2,3,4 or 5 in the present embodiment 6
Existing, repeating part no longer describes in detail.This method converting solar energy into middle warm energy using solar thermal collector, walks including following
Rapid:
Reflecting plate positions: detect the initial position of travelling gear or driving turntable by photoswitch, controller according to
The initial position of travelling gear or driving turntable determines the initial position of reflector；
Reflecting plate is followed the tracks of and thermal-arrest: external sensor passes through gps signal detection to real-time time and local longitude and latitude, controller
Obtain the azimuth of the real-time sun according to real-time time and local longitude and latitude, then controller is according to the azimuth of the sun and reflection
The initial position of plate sends control signal, by the anglec of rotation of reflecting plate rotation control mechanism reflecting plate.
Claims (7)
1. a kind of solar thermal collector, including thermal-collecting tube, also includes reflecting plate and reflecting plate rotation control mechanism；Described reflecting plate
Positioned at the thermal-collecting tube back side and the focal axis of reflecting plate and thermal-collecting tube dead in line；Described reflecting plate is used for passing through solar energy
Reflection gathers on the absorber of thermal-collecting tube, to form heat energy；Described reflecting plate rotation control mechanism be used for driving reflecting plate with
Rotate centered on focal axis, so that reflecting plate is followed the change of sunray and rotated；The back side of each thermal-collecting tube is all arranged
There is a piece of reflecting plate；Controller, external sensor, photoswitch and reflecting plate rotation control mechanism constitute reflecting plate Spin Control
Device；Described photoswitch is used for determining the initial position of reflecting plate；Described external sensor is used for real by gps signal detection
When time and local longitude and latitude；Described controller according to the initial position of real-time time, local longitude and latitude and reflecting plate, by reflecting plate
Rotation control mechanism controls the rotation of reflecting plate；
It is characterized in that: described reflecting plate rotation control mechanism includes connecting rod, travelling gear, support, tooth bar, drive link, motor
With motor rotating disk；Described connecting rod one end is fixedly connected with reflecting plate, and the other end is fixedly connected with travelling gear；The axis of connecting rod and
The dead in line all with thermal-collecting tube for the axis of travelling gear；Described travelling gear is rotatably installed on support；Described motor rotating disk
It is fixedly mounted on the power transmission shaft of motor, described drive link one end is connected with motor rotating disk, and the other end is connected with tooth bar；Described tooth
Bar is located at below travelling gear and is engaged with travelling gear；Described motor drives drive link along drive link by motor rotating disk
Axis moves back and forth, and makes described drive link drive tooth bar to move back and forth along the length direction of tooth bar, described tooth
Bar drives travelling gear rotation, and travelling gear drives reflecting plate rotation by connecting rod；Described photoswitch is arranged on travelling gear
On, described controller detects the initial position of travelling gear by photoswitch, to determine the initial position of reflecting plate；Described control
Real-time time and local longitude and latitude that device processed detects according to external sensor, obtain the azimuth of the real-time sun；Described controller
The initial position of the azimuth according to the sun and reflecting plate sends control signal to motor, with the anglec of rotation of controlled motor.
2. a kind of solar thermal collector, including thermal-collecting tube, also includes reflecting plate and reflecting plate rotation control mechanism；Described reflecting plate
Positioned at the thermal-collecting tube back side and the focal axis of reflecting plate and thermal-collecting tube dead in line；Described reflecting plate is used for passing through solar energy
Reflection gathers on the absorber of thermal-collecting tube, to form heat energy；Described reflecting plate rotation control mechanism be used for driving reflecting plate with
Rotate centered on focal axis, so that reflecting plate is followed the change of sunray and rotated；The back side of each thermal-collecting tube is all arranged
There is a piece of reflecting plate；Controller, external sensor, photoswitch and reflecting plate rotation control mechanism constitute reflecting plate Spin Control
Device；Described photoswitch is used for determining the initial position of reflecting plate；Described external sensor is used for real by gps signal detection
When time and local longitude and latitude；Described controller according to the initial position of real-time time, local longitude and latitude and reflecting plate, by reflecting plate
Rotation control mechanism controls the rotation of reflecting plate；
It is characterized in that: described reflecting plate rotation control mechanism includes connecting rod, travelling gear, support, tooth bar, motor, motor tooth
Wheel；Described connecting rod one end is fixedly connected with reflecting plate, and the other end is fixedly connected with travelling gear；The axis of connecting rod and travelling gear
The dead in line all with thermal-collecting tube for the axis；Described travelling gear is rotatably installed on support；Described motor gear fixed installation
On the power transmission shaft of motor, described motor gear is engaged with tooth bar；Described tooth bar is located at below travelling gear and and driving cog
Wheel engagement；Described motor is moved back and forth along the length direction of tooth bar by motor gear driving tooth bar, and described tooth bar drives
Nutating gear rotates, and travelling gear drives reflecting plate rotation；Described photoswitch is arranged on travelling gear, described controller
Detect the initial position of travelling gear by photoswitch, to determine the initial position of reflecting plate；Described controller is according to outside
The real-time time that sensor detects and local longitude and latitude, obtain the azimuth of the real-time sun；Described controller is according to the side of the sun
The initial position of parallactic angle and reflecting plate sends control signal to motor, with the anglec of rotation of controlled motor.
3. a kind of solar thermal collector, including thermal-collecting tube, also includes reflecting plate and reflecting plate rotation control mechanism；Described reflecting plate
Positioned at the thermal-collecting tube back side and the focal axis of reflecting plate and thermal-collecting tube dead in line；Described reflecting plate is used for passing through solar energy
Reflection gathers on the absorber of thermal-collecting tube, to form heat energy；Described reflecting plate rotation control mechanism be used for driving reflecting plate with
Rotate centered on focal axis, so that reflecting plate is followed the change of sunray and rotated；The back side of each thermal-collecting tube is all arranged
There is a piece of reflecting plate；Controller, external sensor, photoswitch and reflecting plate rotation control mechanism constitute reflecting plate Spin Control
Device；Described photoswitch is used for determining the initial position of reflecting plate；Described external sensor is used for real by gps signal detection
When time and local longitude and latitude；Described controller according to the initial position of real-time time, local longitude and latitude and reflecting plate, by reflecting plate
Rotation control mechanism controls the rotation of reflecting plate；
It is characterized in that: described reflecting plate rotation control mechanism includes connecting rod, travelling gear, support, motor, motor gear and chain
Bar；Described connecting rod one end is fixedly connected with reflecting plate, and the other end is fixedly connected with travelling gear；The axis of connecting rod and travelling gear
The dead in line all with thermal-collecting tube for the axis；Described travelling gear is rotatably installed on support；Described motor gear fixed installation
On the power transmission shaft of motor, described motor gear is engaged with chain；Described chain is engaged with travelling gear；Described motor passes through electricity
Machine gear and the rotation of chain drive travelling gear, travelling gear drives reflecting plate rotation；Described photoswitch is arranged on driving cog
On wheel, described controller detects the initial position of travelling gear by photoswitch, to determine the initial position of reflecting plate；Described
Real-time time and local longitude and latitude that controller detects according to external sensor, obtain the azimuth of the real-time sun；Described control
Device sends control signal to motor according to the azimuth of the sun and the initial position of reflecting plate, with the anglec of rotation of controlled motor.
4. a kind of solar thermal collector, including thermal-collecting tube, also includes reflecting plate and reflecting plate rotation control mechanism；Described reflecting plate
Positioned at the thermal-collecting tube back side and the focal axis of reflecting plate and thermal-collecting tube dead in line；Described reflecting plate is used for passing through solar energy
Reflection gathers on the absorber of thermal-collecting tube, to form heat energy；Described reflecting plate rotation control mechanism be used for driving reflecting plate with
Rotate centered on focal axis, so that reflecting plate is followed the change of sunray and rotated；The back side of each thermal-collecting tube is all arranged
There is a piece of reflecting plate；Controller, external sensor, photoswitch and reflecting plate rotation control mechanism constitute reflecting plate Spin Control
Device；Described photoswitch is used for determining the initial position of reflecting plate；Described external sensor is used for real by gps signal detection
When time and local longitude and latitude；Described controller according to the initial position of real-time time, local longitude and latitude and reflecting plate, by reflecting plate
Rotation control mechanism controls the rotation of reflecting plate；
It is characterized in that: described reflecting plate rotation control mechanism includes connecting rod, driving turntable, support, motor, motor rotating disk and biography
Send band；Described connecting rod one end is fixedly connected with reflecting plate, and the other end is fixedly connected with driving turntable；The axis of connecting rod and transmission turn
The dead in line all with thermal-collecting tube for the axis of disk；Described driving turntable is rotatably installed on support；The fixing peace of described motor rotating disk
It is contained on the power transmission shaft of motor, described motor passes through motor rotating disk and conveyer belt drives driving turntable rotation, and driving turntable rotates
Drive reflecting plate rotation；Described photoswitch is arranged on driving turntable, and described controller is turned by photoswitch detection transmission
The initial position of disk, to determine the initial position of reflecting plate；The real-time time that described controller detects according to external sensor
With local longitude and latitude, obtain the azimuth of the real-time sun；The azimuth according to the sun for the described controller and the initial position of reflecting plate
Send control signal to motor, with the anglec of rotation of controlled motor.
5. the solar thermal collector any one of claim 1-4 it is characterised in that: described reflecting plate be metallic reflection plate
Or Nonmetallic reflective plate；The cross sectional shape of described reflecting plate is parabola, hyperbola or composite curve；Described reflecting plate
A/F is 40mm～400mm；The reflectance of described reflecting plate is not less than 0.75.
6. solar thermal collector according to claim 5 it is characterised in that: also include framework；Described framework is mainly by upper
Glass cover-plate, lower backboard and frame are constituted；Upper glass cover-plate is common calcium soda-lime glass, high glass thoroughly, carry glass with reflection reducing coating, cloth
Stricture of vagina glass or safety glass；The thickness of upper glass cover-plate is 3.0～5.0mm, and light transmittance is not less than 0.75；Described frame is one
Body formula structure or Combined frame structure；Described frame is aluminum alloy frame, carbon steel frame, rustless steel frame or nonmetallic
Frame；Described seal ring thickness is 40mm～400mm；Described frame is either internally or externally provided with heat-insulation layer；Described lower backboard position
Below framework；Described lower backboard is plate carbon steel sheet or embossing aluminium sheet；Be provided with above described lower backboard thickness be 0～
The heat-insulation layer of 100mm；Described lower backboard or frame are provided with steam vent, are beneficial to the discharge of internal steam.
7. a kind of side converting solar energy into middle warm energy using the solar thermal collector any one of claim 1-6
Method is it is characterised in that comprise the following steps:
Reflecting plate positions: detects the initial position of travelling gear or driving turntable by photoswitch, controller is according to transmission
The initial position of gear or driving turntable determines the initial position of reflecting plate；
Reflecting plate follow the tracks of and thermal-arrest: external sensor by gps signal detection arrive real-time time and locality longitude and latitude, controller according to
Real-time time and local longitude and latitude obtain the azimuth of the real-time sun, then controller according to the azimuth of the sun and reflecting plate just
Beginning position sends control signal, controls the anglec of rotation of reflecting plate by reflecting plate rotation control mechanism.
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